Called to process data that was returned from the server.

<div class="definition">
    requestComplete(status, cmd, [callBack])
</div>

<div class="arguments">
    <table>
    <tr>
        <td>status</td>
        <td><b>string</b>, status of the request</td>
    </tr>
    <tr>
        <td>cmd</td>
        <td><b>string</b>, name of the command</td>
    </tr>
    <tr>
        <td>callBack</td>
        <td><b>function</b>, <i>optional</i> call back function</td>
    </tr>
    </table>
</div>
Returns <i>undefined</i>.

<h4>Description</h4>

This method is called when server request returns. First parameters is the <span class="argument">status</span> of the request. If 
<span class="argument">status</span> = 'error' it indicated that request came back with an error. This method will merge returned 
data to the grid. It uses internal variable <span class="argument">w2gird.request_xhr.responseText</span> as the text returned from 
the server.
<div style="height: 10px"></div>

This method emits <a href="w2grid.onLoad" class="method">onLoad</a> event.
